End of the chapter questions Chapters: 7 forward

Question 1

7. 1 In the mature placenta, which fetal issues directly interfaces the maternal uterine connective tissue?
   a. cytotrophoblast
   b. syncytiotrophoblast
   c. extraembryonic mesoderm
   d. decidual cels
   e. None of the above

Answer 1

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Question 2

7. 2 Which condition is related to parental imprinting:
   a. Accessory placental lobes
   b. placenta previa
   c. oligohydramnios
   d. single umbilical artery
   e. hydatidiform mole

Answer 2

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Question 3

7. 3 Blood vessels associated with which structure enter the fetal component of the placenta?
   a. decidua basalis
   b. allantois
   c. amnion
   d. yolk sac
   e. decidua parietalis

Answer 3

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Question 4

7. 4 What type of cells invade the maternal spiral arteries and reduces the flow of blood from their open ends?
   a. hofbauer cells
   b. syncytiotrophoblast
   c. fetal erythrocytes
   d. cytotrophoblast
   e. amniotic epithelium

Answer 4

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Question 5

7. 5 Which condition of the extra embryonic membranes can be found in uteri containing identical twins?
   a. common placenta and amniotic membrane
   b. common placenta and chorion, separate amnions
   c. separate placentas and extra embryonic membranes
   e. all of the above

Answer 5

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Question 6

7. 6 A 28- year old Rh-negative woman’s second son is born severely jaundiced. Which characteristic most likely describes her first child?
   a. male
   b. female
   c. Rh positive
   d. Rh negative
   e. hydramnios

Answer 6

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Question 7

7.7 why is the man placenta designated a hemochorial type of placenta?

Answer 7

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Question 8

7.8 through what layers of placental villus must a molecule of oxygen pass to go from the maternal blood not the embryonic circulation?

Answer 8

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Question 9

7.10 Why must a pregnant woman be very careful about what she eats and drinks?

Answer 9

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Question 10

7.9 What embryonic hormone has served as the basis for many standard pregnancy tests, and why?

Answer 10

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